Monday, May 18 2020 13:04
Alexandr Avanesov

Dates of Armenian NPP`s shutdown for preventive maintenance  rescheduled 

Dates of Armenian NPP`s shutdown for preventive maintenance  rescheduled 

ArmInfo.The shutdown dates for preventive maintenance of the Armenian Nuclear Power Plant have been rescheduled. This was stated by the Chairman of the Nuclear Safety Committee of the Republic of Armenia Ashot Martirosyan in an interview with ArmInfo correspondent.

According to him, it was originally planned that the station will be  stopped at the outage from May 15, but now a decision has been made  to postpone this period. It is planned that the ANPP will be stopped  from July 1. The delay, which meets both the interests of the plant  and the country's energy system, is largely due to the consequences  of the COVID-19 pandemic. Due to the closed borders, the station must  manage to conclude agreements on the supply of necessary equipment,  raw materials. It is expected that the ANPP will be stopped for a  period of 65 days, during which a significant amount of work is to be  completed.

It should be noted that the station is implementing a program to  extend the second power unit by 10 years - until 2026. The project  provides for annealing of the reactor vessel, modernization of  security systems, and replacement of equipment, which is also  associated with security systems. In addition, basic calculation and  technical justifications will be developed and applied on the  possibility of further safe operation of irreplaceable equipment.  After annealing the dome of the reactor, the calculation will be made  based on the residual life of the reactor, and if the result is  positive, the reactor will be able to work another 15 years. As a  result of the implementation of the program, the installed capacity  of the Armenian NPP will increase by 12% -15%. All work must be  completed before the end of 2021.

To recall, for the implementation of the program, the Russian  Federation provided Armenia with a loan of $ 270 million and a grant  of $ 30 million for a period of 15 years with a grace period of  payments in the first three years. Moreover, the annual interest rate  on payments is 3%.

The Armenian NPP consists of two units with Soviet (Russian) VVER  reactors. The first unit was commissioned in 1976, the second - in  1980. In March 1989, after the Spitak earthquake, which killed 25  thousand people, the station was stopped. In November 1995, in  connection with the most acute energy crisis, the second power unit  of the station with a capacity of 407.5 MW was activated. In March  2014, the Armenian government decided to extend the life of the  second power unit.